Electro-shock therapy for military vehicles?

Yeah, the title is slightly misleading.

But it's an ingenious concept. Via Gizmodo:

A team of undergraduate students at MIT have developed a shock absorber that actually generates electricity from bumps in the road. This results in up to a 10 percent improvement in overall vehicle fuel efficiency.

I expect the trick is in storing that electricity for later use. As such, the invention would seem to offer its greatest advantages to some type of hybrid vehicle.